CN206145966U

CN206145966U - Vertical gas boiler of center stove courage L shape pipe

Info

Publication number: CN206145966U
Application number: CN201621136561.5U
Authority: CN
Inventors: 刘少林; 吴金星; 张朔昕; 尚晨阳
Original assignee: Zhengzhou University
Current assignee: Zhengzhou University
Priority date: 2016-10-19
Filing date: 2016-10-19
Publication date: 2017-05-03
Anticipated expiration: 2026-10-19

Abstract

The utility model discloses a vertical gas boiler of center stove courage L shape pipe, including combustor, barrel, stove courage, L shape pipe, smoke collector box, tobacco pipe, spiral flow deflector, commentaries on classics smoke -box, inlet tube, outlet pipe, discharge fume tub, stay tube and base, its characterized in that: the combustor is located vertical boiler barrel top, and the central point that the stove courage is located vertical boiler puts, set up many L shape pipes in the stove courage, be the central beam form, L shape pipe upper end pass stove courage middle part wall and with the wall welding, its lower extreme passes to be changeed the smoke -box bottom plate and welds with the bottom plate, the tobacco pipe arranges around the stove courage that smoke collector box is all connected to the upper end of tobacco pipe and stove courage, and the commentaries on classics smoke -box is all connected to the lower extreme. Flue gas and stove courage and L shape pipe radiation heat transfer have increased the radiation heat transfer area, and stove water is heated and upwards flows fast in the L shape pipe, strengthens the natural convection heat transfer of stove water for stove inner water circulation. This boiler structure is compact, and heat transfer area is great, and the thermal efficiency of boiler is higher.

Description

Center flue L-shaped conduit pipe vertical type gas fired-boiler

Technical field

This utility model is related to a kind of vertical gas boiler, more particularly to a kind of center flue L-shaped conduit pipe vertical type combustion gas Boiler.

Background technology

The flue of the vertical type water heater boiler supplied on current market is generally located on lower portion thereof, flue space relatively narrower, The combustion gas that burner sprays is limited by flue space, and flame profile cannot be fully deployed, it is insufficient to burn, and combustion gas is not complete Clean burn is just discharged to the greatest extent, and heat-energy losses are larger.Boiler internal water-cycling mode is free convection, and heat transfer area is little, and water is followed in stove Ring speed is low, so as to cause heat convection effect poor.In addition, traditional vertical gas fired-boiler mostly is fire tube list return structures, deposit Flue gas flow it is shorter, smoke pipe heat exchange area is less, lateral fluid convection transfer rate is relatively low in smoke pipe the problems such as so that combustion The heat of material burning release cannot be fully absorbed, and so as to cause exhaust gas temperature higher, boiler thermal output is low.

The content of the invention

In order to overcome the above-mentioned deficiencies of the prior art, this utility model fires there is provided a kind of center flue L-shaped conduit pipe vertical type Gas boiler.

This utility model discloses a kind of center flue L-shaped conduit pipe vertical type gas fired-boiler, including burner, cylinder, flue, L Shape conduit, collection smoke box, smoke pipe, spiral flow deflector, turn smoke-box, water inlet pipe, outlet pipe, smoke exhaust pipe, support tube and base, its feature It is：Burner is located at vertical boiler cylinder top, and flue is located at the center of vertical boiler；Many L-shaped are set in flue Conduit, radial in center, L-shaped conduit upper end is welded through flue middle part wall and with wall, and its lower end passes through and turns smoke-box bottom Plate is simultaneously welded with base plate；Smoke pipe is arranged in around flue, and the upper end of smoke pipe and flue is all connected with collecting smoke box, and lower end is all connected with turning cigarette Room.

The smoke-box that turns is an annular housing, and its upper surface is annular tubesheet, and smoke pipe lower end is fixed by the way that welding is vertical On annular tubesheet, its lower surface is circular flat board, and bottom is fixedly welded on base by four support tubes.

Smoke pipe is circumferentially arranged around flue, arranged according to equilateral triangle mode on tube sheet between Internal and external cycle smoke pipe, cigarette The number of turns foundation of pipe is actually needed and can arrange a circle or multi-turn.

Integrate smoke box as cylinder, its upper surface is ring plate, burner is fixed on the center of ring plate, lower end Face is annular tubesheet, and smoke pipe upper end is vertically fixed on annular tubesheet by welding.

Spiral flow deflector is respectively provided with smoke pipe, the spiral flow deflector is distorted close to the steel disc of smoke pipe internal diameter by width Form, by being rubbed into spiral flow deflector in pipe vortex is produced, strengthen the mixing of fluid near wall and central area, reach The purpose of augmentation of heat transfer.

Compared with prior art, the beneficial effects of the utility model are：One is center flue L-shaped conduit pipe vertical type gas fired-boiler Flue is placed in into the center of vertical heater, burner is placed in vertical boiler top, increased the length of combustor, expands and receive Hot area, is fully deployed can flame profile, fully burning；Two is that L-shaped conduit, flue gas and flue and L-shaped are arranged in flue cylinder Conduit radiation heat transfer, increases radiation heat transfer area, and stove water is heated and quickly flow up in L-shaped conduit, accelerates water in stove and follows Ring, strengthens the heat transfer free convection of stove water；Three is the return structures of Multi exhaust two, increases heat exchange area, extends the stream of flue gas Journey and residing time in furnace, make heat be fully used, and exhaust gas temperature is reduced.

Description of the drawings

Flue L-shaped conduit pipe vertical type gas fired-boiler profile centered on Fig. 1.

Fig. 2 is Section A-A top view.

Reference：1- bases；2- water inlet pipes；3- turns smoke-box；4- smoke pipes；5- spiral flow deflectors；6- collection smoke boxes；7- discharges fume Pipe；8- burners；9- outlet pipes；10-L shape conduits；11- flues；12- cylinders；13- support tubes.

Specific embodiment

This utility model is further illustrated below in conjunction with the accompanying drawings.

Collection smoke box is provided with the cylinder of center flue L-shaped conduit pipe vertical type combustion gas, turns smoke-box, flue and smoke pipe, in flue It is provided with the radial L-shaped conduit in center, during installation, first the collection smoke box and bottom on flue and top is turned into smoke-box welding It is vertical fixed, then L-shaped conduit is put into from flue top, its upper end and the wall tapping welding of flue middle part, lower end with turn Smoke-box base plate is welded；Smoke pipe two ends are respectively welded at collection smoke box and turn on the annular tubesheet of smoke-box, and steel disc distortion is made into spiral Flow deflector, and be positioned in smoke pipe；Burner is fixed on vertical boiler cylinder top, and smoke exhaust pipe is welded in collection smoke box upper end, cylinder The bottom and top of body sidewall is respectively mounted water inlet pipe and outlet pipe；Boiler barrel lower end is provided with base, and the bottom for turning smoke-box leads to Cross four support tubes to be fixedly welded on base.

When gas fired-boiler runs, the thermal-flame that burner is produced stretches downwards in flue, and flue gas is led with flue and L-shaped Pipe radiation heat transfer, then enters smoke pipe through turning smoke-box, and collection smoke box is entered after exchanging heat twice, is discharged by smoke exhaust pipe.Cold water from The water inlet pipe of boiler side walls bottom is entered in stove, flue, smoke pipe, is turned smoke-box, collection smoke box bottom and is immersed in stove water, is all cigarette The heat-transfer surface of gas and stove water, hot water is discharged from the outlet pipe on boiler side walls top.In addition, in the L-shaped conduit connection stove in flue Bottom and middle part, internal to be full of stove water all the time, stove water is quickly flowed up after being heated, and accelerates bottom oven water with center ovens water Convection current.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit this utility model Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in this utility model Protection domain within.

Claims

1. a kind of center flue L-shaped conduit pipe vertical type gas fired-boiler, including burner, cylinder, flue, L-shaped conduit, collection smoke box, cigarette Pipe, spiral flow deflector, turn smoke-box, water inlet pipe, outlet pipe, smoke exhaust pipe, support tube and base, it is characterised in that：Burner is located at Vertical boiler cylinder top, flue is located at the center of vertical boiler；Many L-shaped conduits are set in flue, in center radiation Shape, L-shaped conduit upper end is welded through flue middle part wall and with wall, and its lower end passes through and turns smoke-box base plate and weld with base plate； Smoke pipe is arranged in around flue, and the upper end of smoke pipe and flue is all connected with collecting smoke box, and lower end is all connected with turning smoke-box.

2. center flue L-shaped conduit pipe vertical type gas fired-boiler according to claim 1, it is characterised in that：The smoke-box that turns is One annular housing, its upper surface is annular tubesheet, and smoke pipe lower end is vertically fixed on annular tubesheet by welding, its lower surface For circular flat board, bottom is fixedly welded on base by four support tubes.

3. center flue L-shaped conduit pipe vertical type gas fired-boiler according to claim 1, it is characterised in that：Smoke pipe surrounds flue Circumferentially arrange, arrange according to equilateral triangle mode on tube sheet between Internal and external cycle smoke pipe, the number of turns foundation of smoke pipe is actually needed One circle or multi-turn can be set.

4. center flue L-shaped conduit pipe vertical type gas fired-boiler according to claim 1, it is characterised in that：Integrate smoke box as cylinder Body, its upper surface is ring plate, and burner is fixed on the center of ring plate, and lower surface is annular tubesheet, on smoke pipe End is vertically fixed on annular tubesheet by welding.